I have light control system connection and try to figure out what max lengh is from switch to LMIO sensor control. Here is the connection graph.
View attachment 110643
You can see the LMRC(light management romm control) provide 24V throgh IRB cable. The LMIO control the switch on/off. LMIO is parallel.
View attachment 110644
Output is 24VDC and I connected pin 8 and 9 together. The limits is that LMIO can't be lower than 18V. What is max lenght for these system?
Part of LMIO circuit as follows.
Here is the test data I got.
Avage difference each LMIO unit = [(21.4821.33)+(21.3320.79)+(20.7920.71)+(20.7120.53)+(20.5320.27)]/6 = 0.202V drop per unit added
I assume that the LMIO drops down 0.202 with each unit added until it stops at 18V. The total units I got (2418)/0.202 = 30
6 units I got about 24.99mA total. So, my total current is about (29/6)*24.99 = 120.75mA
Based on the above 18V limit drop for LMIO, I got equation Lmax = (V218)*1000/(2*0.12075*6.4) = 2251.55ft
The other question is why I1 current is greater than 5mA or it doesn't matter? Please let me know if you have any question.
Thanks
View attachment 110643
You can see the LMRC(light management romm control) provide 24V throgh IRB cable. The LMIO control the switch on/off. LMIO is parallel.
View attachment 110644
Output is 24VDC and I connected pin 8 and 9 together. The limits is that LMIO can't be lower than 18V. What is max lenght for these system?
Part of LMIO circuit as follows.
Here is the test data I got.
Avage difference each LMIO unit = [(21.4821.33)+(21.3320.79)+(20.7920.71)+(20.7120.53)+(20.5320.27)]/6 = 0.202V drop per unit added
I assume that the LMIO drops down 0.202 with each unit added until it stops at 18V. The total units I got (2418)/0.202 = 30
6 units I got about 24.99mA total. So, my total current is about (29/6)*24.99 = 120.75mA
Based on the above 18V limit drop for LMIO, I got equation Lmax = (V218)*1000/(2*0.12075*6.4) = 2251.55ft
The other question is why I1 current is greater than 5mA or it doesn't matter? Please let me know if you have any question.
Thanks
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